CONTROL DEVICE FOR HYBRID VEHICLE

• US 20190315333A1
• Filed: 04/10/2019
• Published: 10/17/2019
• Est. Priority Date: 04/13/2018
• Status: Abandoned Application

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: NAKAZONO, Hideki, Sonoda, Teruhiko
• Application Number:
  US16/380,043
• Publication Number:
  US 20190315333A1
• Time in Patent Office: Days
• CPC Class Codes: B60K 6/20 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
• CPC Class Codes: B60K 6/448 Electrical distribution type
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 20/17 for noise reduction
• CPC Class Codes: B60W 2510/244 Charge state
• CPC Class Codes: B60W 2540/10 Accelerator pedal position
• CPC Class Codes: B60W 2710/06 Combustion engines, Gas turbines
• CPC Class Codes: B60W 30/1882 characterised by the working point of the engine, e.g. by using engine output chart
• CPC Class Codes: F02D 2200/50 said parameters being related to the vehicle or its components
• CPC Class Codes: F02D 2200/503 Battery correction, i.e. corrections as a function of the state of the battery, its output or its type
• CPC Class Codes: Y02T 10/62 Hybrid vehicles

Abstract

A control device for a hybrid vehicle, the control device including: a controller performing control on an engine operating point along an equal power curve when a target charge amount of a battery exceeds an upper limit value of a battery charge power due to a further depressing of an accelerator pedal. Further, when a ratio of a noise derived from a powertrain of the hybrid vehicle to all noises is less than a ratio of a background noise to the all noises, or when a deceleration is requested, the controller returns the engine operating point from an engine operating point on the equal power curve to an engine operating point within an operating region where power generation efficiency is high.

Claims

1. A control device for a hybrid vehicle, the control device comprising:

a controller configured to perform control on an engine operating point along an equal power curve when a target charge amount of a battery exceeds an upper limit value of a battery charge power due to a further depressing of an accelerator pedal,

wherein the controller is configured to, when a ratio of a noise derived from a powertrain of the hybrid vehicle to all noises is less than a ratio of a background noise to the all noises, or when a deceleration is requested, return the engine operating point from an engine operating point on the equal power curve to an engine operating point within an operating region where power generation efficiency is high.